<template>
<div>
<!-- 面包屑导航区域 -->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图区 -->
<el-card >
    <!-- 搜索与添加区域 -->
  <el-row :gutter="20">
      <el-col :span="7">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
  </el-input>
      </el-col>
      <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
      </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userlist" border stripe>
      <el-table-column label="#" type="index"></el-table-column>
      <el-table-column label="姓名" prop="username"></el-table-column>
      <el-table-column label="邮箱" prop="email"></el-table-column>
      <el-table-column label="电话" prop="mobile"></el-table-column>
      <el-table-column label="角色" prop="role_name"></el-table-column>
      <el-table-column label="状态">
          <template slot-scope="scope">
              <el-switch
                    v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                    </el-switch>
          </template>
      </el-table-column>
      <el-table-column label="操作">
           <template slot-scope="scope">
               <!-- 修改按钮 -->
               <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
               <!-- 删除按钮 -->
               <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
               <!-- 分配角色按钮 -->
                <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
               <el-button type="warning" icon="el-icon-setting" size="mini"  @click="setRole(scope.row)"></el-button>
               </el-tooltip>
           </template>
      </el-table-column>
  </el-table>
  <!-- 分页区域 -->
  <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 3, 6, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="50%"
  @close="addDialogClosed">
  <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
   <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机号" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
      <!-- 底部按钮区域 -->
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="adduser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClosed">
  <!-- 内容主体区域 -->
  <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
  <el-form-item label="用户名">
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机号" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
      <!-- 底部按钮区域 -->
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%" @close="setRoleDialogClosed">
  <div>
      <p>当前的用户：{{userInfo.username}}</p>
      <p>当前的角色: {{userInfo.role_name}}</p>
      <p>分配新角色:
           <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in roleList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
      </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
</div>
</template>

<script>
export default {
    data () {
        // 验证邮箱的规则
         var checkEmail = (rule, value, cb) => {
            // 验证邮箱的正则表达式
             const regEmail = /^[A-Za-z\d]+([-_.][A-Za-z\d]+)*@([A-Za-z\d]+[-.])+[A-Za-z\d]{2,4}$/;
        if (regEmail.test(value)) {
            // 合法邮箱
          return cb();
        }
        cb(new Error('请输入合法的邮箱'));
        }
        // 验证手机号的规则
        var checkMobile = (rule, value, cb) => {
            // 验证手机号的正则表达式
            const regMobile = /^1[3|4|5|7|8]\d{9}$/;
        if (regMobile.test(value)) {
            // 合法手机号
          return cb();
        }
        cb(new Error('请输入合法的手机号'));
        }
        return {
            //  获取用户列表的参数对象
            queryInfo: {
                query: '',
                // 当前的页数
                pagenum: 1,
                // 当前每页显示多少条数据
                pagesize: 2
            },
            // 需要被分配角色的用户信息
            userInfo: {},
            // 所有用户的数据列表
            userlist:[],
            // 所有角色的数据列表
            roleList: [],
            // 已选中的角色id
            selectedRoleId: '',
            total: 0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible: false,
            // 控制修改用户对话框的显示与隐藏
            editDialogVisible: false,
            // 控制分配角色对话框的显示与隐藏
            setRoleDialogVisible: false,
            // 查询到的用户信息对象
            editForm: {},
            //修改表单验证规则对象 
            editFormRules: {
                email: [
                    { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ]
            },
            // 添加用户的表单数据
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            // 添加表单验证规则对象
            addFormRules: {
                username: [
                     { required: true, message: '请输入用户名', trigger: 'blur' },
                     { min: 3, max: 8, message: '用户名长度在 3 到 8 个字符', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 12, message: '长度在 6 到 12 个字符', trigger: 'blur' }
                ],
                email: [
                    { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile: [
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur' }
                ]
            },
        }
    },
//部件
 components: {
 },
//静态
 props: {
 },
//对象内部的属性监听，也叫深度监听
 watch: {
 },
//属性的结果会被缓存，除非依赖的响应式属性变化才会重新计算。主要当作属性来使用；
 computed: { 
 },
//方法表示一个具体的操作，主要书写业务逻辑；
 methods: { 
   async getUserList() {
      const {data: res} = await this.$http.get('users', {params: this.queryInfo});
      if (res.meta.status != 200) {
          return this.$message.error('获取用户列表失败');
      }
      this.userlist = res.data.users;
      this.total = res.data.total;
      console.log(res);
    },
    // 监听 pagesize 改变的事件
     handleSizeChange(newSize) {
        // console.log(newSize);
        this.queryInfo.pagesize = newSize;
        this.getUserList();
      },
    //   监听页码值改变的事件
      handleCurrentChange(newPage) {
        // console.log(newPage);
        this.queryInfo.pagenum = newPage;
        this.getUserList();
      },
    //   监听 switch 开关状态的改变
    async  userStateChanged(userinfo) {
          console.log(userinfo);
     const {data: res} =  await  this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
     if (res.meta.status != 200) {
         userinfo.mg_state = !userinfo.mg_state;
          return this.$message.error('更新用户状态失败');
      }
      this.$message.success('更新用户状态成功');
       },
    //    监听用户对话框的关闭事件
       addDialogClosed() {
           this.$refs.addFormRef.resetFields();
       },
    //    点击确定按钮，添加新用户
    adduser() {
        this.$refs.addFormRef.validate(async valid => {
            if (!valid) return
            // 可以发起添加用户的网络请求
        const {data: res} = await this.$http.post('users', this.addForm);
        if (res.meta.status != 201) {
          return this.$message.error('添加用户失败');
      }
      this.$message.success('添加用户成功');
    //   隐藏添加用户对话框
      this.addDialogVisible = false;
    //   刷新用户列表
      this.getUserList();
        });
    },
    // 展示编辑用户的对话框
   async showEditDialog(id) {
       this.editDialogVisible = true;
    //    console.log(id);
   const {data: res} = await this.$http.get('users/' + id);
    if (res.meta.status != 200) {
          return this.$message.error('修改用户信息失败');
      }
      this.editForm = res.data;
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed() {
        this.$refs.editFormRef.resetFields();
    },
    // 点击确定按钮，修改用户信息
    editUserInfo() {
        this.$refs.editFormRef.validate(async valid => {
            if (!valid) return
            // 可以发起修改用户信息的网络请求
        const {data: res} = await this.$http.put('users/' + this.editForm.id, this.editForm);
        if (res.meta.status != 200) {
          return this.$message.error('修改用户信息失败');
      }
      this.$message.success('修改用户信息成功');
    //   隐藏添加用户对话框
      this.editDialogVisible = false;
    //   刷新用户列表
      this.getUserList();
        });
    },
    // 删除用户提示
   async removeUserById(id) {
    const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
         ).catch(err => err)
        //  如果用户确认删除，返回字符串confirm
        // 如果用户取消了删除，返回字符串cancle
        // console.log(confirmResult);
        if (confirmResult != 'confirm') {
            return this.$message.info('已取消删除!')
        } 
        // console.log('确认删除');
      const {data: res} = await this.$http.delete('users/' + id);
      if (res.meta.status != 200) {
          return this.$message.error('删除用户失败');
      }
        this.$message.success('删除用户成功');
        this.getUserList();
      },
    //   展示分配角色的对话框
    async setRole(userInfo) {
        this.userInfo = userInfo;
        // 在展示对话框之前， 获取所有的角色列表
        const {data: res} = await this.$http.get('roles');
         if (res.meta.status != 200) {
          return this.$message.error('获取角色列表失败');
         }
         this.roleList = res.data;
        this.setRoleDialogVisible = true;
   //    console.log(id);
//    const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`);
//     if (res.meta.status != 200) {
//            return this.$message.error('分配失败');
//       }
//       this.userinfo = res.data;
      },
     async saveRoleInfo() {
          if (!this.selectedRoleId) {
              return this.$message.error('请选择要分配的角色');
          }
        const {data: res} = await this.$http.put(`users/${this.userInfo.id}/role`,{
              rid: this.selectedRoleId
          })
          if (res.meta.status != 200) {
            return this.$message.error('更新角色失败');
      }
      this.$message.success('更新角色成功');
      this.getUserList();
      this.setRoleDialogVisible = false;
      },
    //   监听分配角色对话框的分配事件
    setRoleDialogClosed() {
        this.selectedRoleId = ''
        this.userInfo = {}
    }
        
 },
//请求数据
 created() {
     this.getUserList();
},
 mounted() {
}
}
</script>

<style lang="less" scoped>

</style>
